1: <?php
2:
3: 4: 5: 6: 7: 8: 9: 10:
11:
12: namespace Nette\Http;
13:
14: use Nette;
15:
16:
17: 18: 19: 20: 21: 22: 23: 24: 25:
26: final class Response extends Nette\Object implements IResponse
27: {
28:
29: private static $fixIE = TRUE;
30:
31:
32: public $cookieDomain = '';
33:
34:
35: public $cookiePath = '/';
36:
37:
38: public $cookieSecure = FALSE;
39:
40:
41: public $cookieHttpOnly = TRUE;
42:
43:
44: private $code = self::S200_OK;
45:
46:
47: 48: 49: 50: 51: 52: 53:
54: public function setCode($code)
55: {
56: $code = (int) $code;
57:
58: static $allowed = array(
59: 200=>1, 201=>1, 202=>1, 203=>1, 204=>1, 205=>1, 206=>1,
60: 300=>1, 301=>1, 302=>1, 303=>1, 304=>1, 307=>1,
61: 400=>1, 401=>1, 403=>1, 404=>1, 405=>1, 406=>1, 408=>1, 410=>1, 412=>1, 415=>1, 416=>1,
62: 500=>1, 501=>1, 503=>1, 505=>1
63: );
64:
65: if (!isset($allowed[$code])) {
66: throw new Nette\InvalidArgumentException("Bad HTTP response '$code'.");
67:
68: } elseif (headers_sent($file, $line)) {
69: throw new Nette\InvalidStateException("Cannot set HTTP code after HTTP headers have been sent" . ($file ? " (output started at $file:$line)." : "."));
70:
71: } else {
72: $this->code = $code;
73: $protocol = isset($_SERVER['SERVER_PROTOCOL']) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.1';
74: header($protocol . ' ' . $code, TRUE, $code);
75: }
76: return $this;
77: }
78:
79:
80: 81: 82: 83:
84: public function getCode()
85: {
86: return $this->code;
87: }
88:
89:
90: 91: 92: 93: 94: 95: 96:
97: public function ($name, $value)
98: {
99: if (headers_sent($file, $line)) {
100: throw new Nette\InvalidStateException("Cannot send header after HTTP headers have been sent" . ($file ? " (output started at $file:$line)." : "."));
101: }
102:
103: if ($value === NULL && function_exists('header_remove')) {
104: header_remove($name);
105: } elseif (strcasecmp($name, 'Content-Length') === 0 && ini_get('zlib.output_compression')) {
106:
107: } else {
108: header($name . ': ' . $value, TRUE, $this->code);
109: }
110: return $this;
111: }
112:
113:
114: 115: 116: 117: 118: 119: 120:
121: public function ($name, $value)
122: {
123: if (headers_sent($file, $line)) {
124: throw new Nette\InvalidStateException("Cannot send header after HTTP headers have been sent" . ($file ? " (output started at $file:$line)." : "."));
125: }
126:
127: header($name . ': ' . $value, FALSE, $this->code);
128: return $this;
129: }
130:
131:
132: 133: 134: 135: 136: 137: 138:
139: public function setContentType($type, $charset = NULL)
140: {
141: $this->setHeader('Content-Type', $type . ($charset ? '; charset=' . $charset : ''));
142: return $this;
143: }
144:
145:
146: 147: 148: 149: 150: 151: 152:
153: public function redirect($url, $code = self::S302_FOUND)
154: {
155: if (isset($_SERVER['SERVER_SOFTWARE']) && preg_match('#^Microsoft-IIS/[1-5]#', $_SERVER['SERVER_SOFTWARE'])
156: && $this->getHeader('Set-Cookie') !== NULL
157: ) {
158: $this->setHeader('Refresh', "0;url=$url");
159: return;
160: }
161:
162: $this->setCode($code);
163: $this->setHeader('Location', $url);
164: echo "<h1>Redirect</h1>\n\n<p><a href=\"" . htmlSpecialChars($url) . "\">Please click here to continue</a>.</p>";
165: }
166:
167:
168: 169: 170: 171: 172: 173:
174: public function setExpiration($time)
175: {
176: if (!$time) {
177: $this->setHeader('Cache-Control', 's-maxage=0, max-age=0, must-revalidate');
178: $this->setHeader('Expires', 'Mon, 23 Jan 1978 10:00:00 GMT');
179: return $this;
180: }
181:
182: $time = Nette\DateTime::from($time);
183: $this->setHeader('Cache-Control', 'max-age=' . ($time->format('U') - time()));
184: $this->setHeader('Expires', self::date($time));
185: return $this;
186: }
187:
188:
189: 190: 191: 192:
193: public function isSent()
194: {
195: return headers_sent();
196: }
197:
198:
199: 200: 201: 202: 203: 204:
205: public function ($header, $default = NULL)
206: {
207: $header .= ':';
208: $len = strlen($header);
209: foreach (headers_list() as $item) {
210: if (strncasecmp($item, $header, $len) === 0) {
211: return ltrim(substr($item, $len));
212: }
213: }
214: return $default;
215: }
216:
217:
218: 219: 220: 221:
222: public function ()
223: {
224: $headers = array();
225: foreach (headers_list() as $header) {
226: $a = strpos($header, ':');
227: $headers[substr($header, 0, $a)] = (string) substr($header, $a + 2);
228: }
229: return $headers;
230: }
231:
232:
233: 234: 235: 236: 237:
238: public static function date($time = NULL)
239: {
240: $time = Nette\DateTime::from($time);
241: $time->setTimezone(new \DateTimeZone('GMT'));
242: return $time->format('D, d M Y H:i:s \G\M\T');
243: }
244:
245:
246: 247: 248:
249: public function __destruct()
250: {
251: if (self::$fixIE && isset($_SERVER['HTTP_USER_AGENT']) && strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE ') !== FALSE
252: && in_array($this->code, array(400, 403, 404, 405, 406, 408, 409, 410, 500, 501, 505), TRUE)
253: && $this->getHeader('Content-Type', 'text/html') === 'text/html'
254: ) {
255: echo Nette\Utils\Strings::random(2e3, " \t\r\n");
256: self::$fixIE = FALSE;
257: }
258: }
259:
260:
261: 262: 263: 264: 265: 266: 267: 268: 269: 270: 271: 272:
273: public function setCookie($name, $value, $time, $path = NULL, $domain = NULL, $secure = NULL, $httpOnly = NULL)
274: {
275: if (headers_sent($file, $line)) {
276: throw new Nette\InvalidStateException("Cannot set cookie after HTTP headers have been sent" . ($file ? " (output started at $file:$line)." : "."));
277: }
278:
279: setcookie(
280: $name,
281: $value,
282: $time ? Nette\DateTime::from($time)->format('U') : 0,
283: $path === NULL ? $this->cookiePath : (string) $path,
284: $domain === NULL ? $this->cookieDomain : (string) $domain,
285: $secure === NULL ? $this->cookieSecure : (bool) $secure,
286: $httpOnly === NULL ? $this->cookieHttpOnly : (bool) $httpOnly
287: );
288:
289: $this->removeDuplicateCookies();
290: return $this;
291: }
292:
293:
294: 295: 296: 297:
298: public function removeDuplicateCookies()
299: {
300: if (headers_sent($file, $line) || ini_get('suhosin.cookie.encrypt')) {
301: return;
302: }
303:
304: $flatten = array();
305: foreach (headers_list() as $header) {
306: if (preg_match('#^Set-Cookie: .+?=#', $header, $m)) {
307: $flatten[$m[0]] = $header;
308: if (PHP_VERSION_ID < 50300) {
309: header('Set-Cookie:');
310: } else {
311: header_remove('Set-Cookie');
312: }
313: }
314: }
315: foreach (array_values($flatten) as $key => $header) {
316: header($header, $key === 0);
317: }
318: }
319:
320:
321: 322: 323: 324: 325: 326: 327: 328: 329:
330: public function deleteCookie($name, $path = NULL, $domain = NULL, $secure = NULL)
331: {
332: $this->setCookie($name, FALSE, 0, $path, $domain, $secure);
333: }
334:
335: }
336: